Building corner



Patented Oct.i29, 1940 UNITED 1mm f OFFICE? Ind assignors to MasticAsphalt Corporation,

South Bend, Ind. a corporation of Indiana Application)! 1, 939. No.211,006 g sou-1m. (cue-5) This invention relates tobuilding corners, andmore particularly, to corner units of building.

covering-material or siding formed of composition board. l ,1 g 1 IBuilding covering material oithe type com- 7 prising waterprooied anddecorated composition board requires the use of a corner piece at eachbuildingcorner. In conventional practice, panels of building coveringmaterial are applied to each wail of a building, andapreformedright'angled' corner piece is applied to overlap the outer ends of theplane panels on each wall adjacent the corner of thebuildin'g.,Thesecornervf pieces are rigid, and are preferably formed, eitherf'by'two Q panels of material, with.abultting -'edge sr at to the facethereof, rigidly secured'together; or

by forming a deep veshapedigrooveiat backof angle bending, fact that theg asinglepanel permitting. gi t of said panel. a; mm th V H two parts ofthe coriner'm igidly secured together to prevent'th jjfron gseparatingat the outer corner edge corner-must be reinforced. I v a it is,therefore, the pri object of this invention tot provide a" corner having1 a, novel reinforcement. Y I

Afurther objectis to provide a sheet metal corner reinforcement rigidlysecured to the two corner panels at their backsand" solidly positioningand connecting the'panels to prevent separation thereof. 1

A further object is to provide a netalcorner reinforcement havingportions bearing on the back of each corner panel, wherein each portioncarries rigid anchoring means imbedded or pressed into the adjacentcorner panel, and a rlgidifying part at an angle thereto.

A further object is to provide a corner formed of two angularly disposedrigid panels, and a reinforcing member comprising a flat metal stripinserted between the adjacent panel edges and having lateral extensionscarrying impaling members pressed and anchored in said panels.

' Other objects will be apparent from the de- 4| scription and appendedclaims.

' In the drawing: Fig. 1 is a rear fragmentary perspective view of acorner.

Fig. 2 is a fragmentary horizontal cross sectional view of a cornertaken on line 2-2 of,

Fig. 1. i

li eferring, to the drawing, which illustates the preferred embodimentof the invention, the

numeral l0 designates a corner formed of two angularly disposed parts orpanels ll of rigid,

composition board. The panels l i may either e individual panelsprovided with "meeting edges at a 45 angle to their faces,'ormay bepartof a unitary panel having a deep 'V-shaped groove;

extendingflsubstantially therethrough from the Q back thereof to permitbending'of the. panel at the'groove to right angler-elation. The outerfaces of the corner maybe suitably weatherproofed and" decorated. Forinstance, a layer of asphalt or other waterproofing having mineralparticles or grit partially pressed therein to be retained thereby, maycover the outer faces of comer panels ll. Such a coating may havegrooves or depressions thereinsimulating'mortar joints and outliningportions of the coated face to resemble masonry faces. The compositionboard panels are preferably surface saturated to shallow depth withwaterproofing material to waterproof and rigidiry orreinforce thefibrous board at all surfaces thereof.

My improved reinforcement comprises an elongated strip. ii of flat metalinserted between meeting edges of the panels for .which purpose theinner portions of said meeting edges may be slightly recessed. Adhesivewaterproofing g5 material I! is inserted between the meeting edges ofpanels H at strip l2 and outwardly thereof to-form a waterproof sealbetween panels ii and to assistin securing strip I! in operativerelation to said panels. A plurality .of integral tabs i4 project fromstrip [2 at the back of the corner, and are preferably bent intoengagement with the backs of panels ll. Tabs M are preferably ofsubstantiallytriangular or pointed shape,

- and the outer pointed portions ii are bent at 35 substantially rightangles to the tabs to constltuteimpaling members to be pressed into thepanels ,in spaced relation to strip i2 and at an angle to said strip.Alternateftabs ll are preferably oppositely bent so that a plurality of:said tabs engage each panel II and each panel is impaled by a pluralityof parts 15 in substantially equally spaced relation for the full lengthof the strip l2. Any stress tending to separate or deform the corner isresisted by the u rigid. reinforcement acting on the body of each panelat a suilicient distance from the meeting. panel edges to preventfracture or breakage of the panels by impaling parts II. Strip l2 mayextend the full length of the corner, in which angular disposition ofimpaling parts I I to strip I g i2, 2. positive mechanical interlock iseffected between the reinforcing member and the panels, which resistswithdrawal or displacement of said strip from operative position betweenthe meeting panel edges.

The corner may be reinforced at its outer face if desired, but the rigidcharacter of the reinforcement coupled with its solid mechanical anchoror interlock with the panels render this optional. It will also be seenthat the use of panels Ii having their fibrous constituents boundtogether and reinforced by surface saturation insures a strongmechanical interlock thereof by impaling members I5 imbedded therein andpermits comparatively short impaling members to obtain a solid interlockwith said panels.

We claim:

1. A preformed building corner formed of two angularly disposed sectionsof composition board having meeting beveled edges, a flat metal stripinserted between said edges, adhesive waterproofing material betweensaid edges at and adjacent said strip, a plurality of impaling membersimbedded in the inner face of each section spaced from and extending atan angle to said strip, and rigid members carried by said strip andmounting said impaling members.

2. A preformed building corner as defined in claim 1, wherein said lastnamed members constitute tabs formed integrally with said strip and saidimpaling members constitute pointed bent ends of said tabs.

3. A preformed building corner as defined in claim 1, wherein saidcomposition board panels are saturated adjacent all surfaces to bindtogether and reinforce the constituents thereof at each surface andfirmly anchor said impaling members.

4. A preformed building corner formed of two angularly disposed portionsof composition board having mitered meeting edges, said portions havingwaterproof surfacing material at their outer faces and spanning saidmeeting edges, and a rigid metal reinforcing member including a webadhesively. secured between said meeting edges and impalingmemberscarried by and extending at an angle to said web imbedded in the innerfaces of said portions in spaced relation to .said web.

5. A preformed building corner as defined in claim 4, wherein saidcomposition board portions are reinforced by saturation at the rearfaces thereof engaged by said lmpaling members.

HENRY 'A. MULDERINLK. MARK DRINKALL.

